dolphin

hist(Math,
     col= "#8F00FF",
     main ="數學成績或統計成績",
     xlab ="數學成績",
     ylab ="統計成績")

data<- c(185,82,36,28,25)
labels <- c("娛樂休閒","知識閱讀","體育競技","科學創新","公益活動")

pie(data,labels,main ="大學生最喜歡參加的社團的次數分配表", col=heat.colors(length(data)))

library(readr)
Japan <- c(84.63,61,49,89,51,59,53,79,91)

stem(Japan)

## 
##   The decimal point is 1 digit(s) to the right of the |
## 
##   4 | 9
##   5 | 139
##   6 | 1
##   7 | 9
##   8 | 59
##   9 | 1

mean(Japan)

## [1] 68.51444

median(Japan)

## [1] 61

max(Japan)

## [1] 91

sd(Japan)

## [1] 17.21255

var(Japan)

## [1] 296.2719

Q1 <- quantile(Japan, 1 / 4)
Q3 <- quantile(Japan, 3 / 4) 
Q1

## 25% 
##  53

Q3

##   75% 
## 84.63